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<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
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        <meta charset="UTF-8">
        <title>Title</title>
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<h1>欢迎使用Spring Security!</h1>
<p>点击 <a th:href="@{/hello}">这里</a> 打个招呼吧 </p>
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</html>